Columbia (USGS 25034) - Hickman (1980): Priabonian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Epitoniidae
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Epitonium (Boreoscala) keaseyense
Durham 1937
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Gastropoda
- Naticidae
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Polinices (? Euspira) clementensis
(Hanna 1927)
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original and current combination Natica clementensis | |||||||
Polinices (Euspira) nuciformis
(Gabb 1864)
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Natica (Natica) weaveri
Tegland 1933
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Gastropoda
- Neogastropoda
- Cancellariidae
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Bonellitia (Bonellitia) smithwickensis
Hickman 1980
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Gastropoda
- Neogastropoda
- Turridae
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Ptychosyrinx facula
Hickman 1976
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Hickman 1976 | ||||||
Procerapex bentsonae
(Durham 1944)
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Hickman 1976 | ||||||
original and current combination Gemmula bentsonae | |||||||
Parasyrinx delicata
Hickman 1976
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Hickman 1976 | ||||||
Acamptogenotia (Acamptogenotia) tessellata
Hickman 1976
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Hickman 1976 | ||||||
Gastropoda
- Neogastropoda
- Buccinidae
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Trophonopsis platacantha
Hickman 1980
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Gastropoda
- Neogastropoda
- Ptychatractidae
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Exilia bentsonae
Hickman 1980
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Gastropoda
- Bursidae
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Olequahia schencki
Durham 1944
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Gastropoda
- Cassidae
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Echinophoria dalli
(Dickerson 1917)
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see common names |
Geography
Country: | United States | State/province: | Oregon | County: | Columbia |
Coordinates: | 45.8° North, 123.3° West (view map) | ||||
Paleocoordinates: | 46.1° North, 111.0° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Priabonian | ||
Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
Formation: | Keasey | Member: | Middle | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Middle member includes 500 m of predominantly light gray highly tuffaceous siltstone and mudstone beds with occasional ash layers and calcaerous concretionary beds. The Keasey Formation consists of a maximum of 700 m of gray tuffaceous marine siltstone and massive mudstone discontinuously exposed in quaries, road and railway cuts, and along major drainages. The Keasey Fm overlies the late Eocene Cowlitz Fm, and underlies the Pittsburg Bluff Fm. Fm is subdivided into three informal members. |
Lithology and environment
Primary lithology: | concretionary,tuffaceous,gray poorly lithified calcareous siltstone |
Secondary lithology: | concretionary,tuffaceous,gray calcareous mudstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: Predominantly light gray highly tuffaceous siltstone and mudstone beds with occasional ash layers and calcaerous concretionary beds | |
Environment: | deep-water indet. |
Geology comments: No general geologic data provided |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Collection method comments: USGS collections are reposited in USNM. Other collections are reposited at Stanford University (SU), UC Berkeley Museum of Paleontology (UCMP), Cal. Acad. Sci. (CAS), Oregon State Dept. of Geology and Mineral Industries (DOGAMI) | |
Taxonomic list comments:Exhaustive for gastropoda |
Metadata
Also known as: | USGS 25034 | ||
Database number: | 40194 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2004-06-19 16:27:12 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2004-06-19 16:27:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
490. | C. S. Hickman. 1980. Paleogene Marine Gastropods of the Keasey Formation in Oregon. Bulletins of American Paleontology 78(310):1-112 [L. Ivany/E. Kowalski/M. Uhen] |
Secondary references:
10878 | C. J. Hickman. 1976. Bathyal gastropods of the family Turridae in the Early Oligocene Keasey Formation in Oregon, with a review of some deep-water genera in the Paleocene of the Eastern Pacific. Bulletins of American Paleontology 70(292):1-119 [A. Miller/A. Hendy/P. Wagner] |